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Hi,
The following is just My Own, not so humble, Opinions and Feelings!
Heads up, Mostly bad about Prestone and a like!
As best as I can recollect Pentosin, the company, has been around a long time, much like Prestone products.
Back when I was doing some research on the major difference between those two, it was Prestone that repackages more. Prestone is not actually into making a lot of their products.
At first, I found Pentosin made things for industrial uses and so they too, are a large producer of products.
So for Europe it's like saying a subsidiary of Dow Chemical, who now owns a big share of DuPont by the way! That family has sold out!
Just like the Busch beer family has nothing to say about our new "America" beer!
In Bev of Europe, now does.
All of this, doesn't make them good or bad in anyone's books either. Well, maybe a few underground environmental and USA economic papers, somewhere, would argue that point a bit!
What I did notice was that both products use silicates!
Silicates are, from what I can tell for myself, from rocks and stays a rock!
This is old school technology, that is still plentiful and a cheap protection method.
Sili anything is Part sand if you will. Just like an "oxide" is a chemically broken down byproduct of something.
Alumni oxide is what we know as sanding grit. Silicon carbide is from minerals but a man made concoction to a degree by proportions.
I'm not a chemist but I know that each have a place and purpose but any silicate white cake stuff in my radiator is not one of them.
I personally feel that silicates, in themselves, precipitate out of solution over time and plug up tubes in radiators.
The precipitation issue was part of the depletion reasons for exchanging the fluid out every two years.
It turns to a cake as it stops working. Unfortunately it's the coolest place it stops last! I replaced or cleaned out a couple radiators before I caught on!
Now the sales gimmick is to sell "low silicates and low phosphates." Like a rage going on in laundry detergents and their " fresh temporary" smells! Thank goodness for that!
Environmentally the green antifreeze was not a real big deal, if handled properly.
This helped what started up being a Five year coolants turnabout!
The handling or the lack of responsibility, therein!
I should add and the use of more exotic metals in the engines was becoming an upcoming but kept silent issue!
This is what all help break the two year rotational money chain!
The Ashland / Valvoline company saw this on the horizon and broke ranks to beat all to the punch! This was close to some thirty odd years ago, by coming up with an Organic Acid Technology and five year coolant.
For several quiet years, they started "eating" away at the problem with a "solution." (:-)
Since then, patents fell into licensing, with the usually ones that did not want to play.
Those like in Dex-Cool, which was a bomb!
That is, as far as I can tell, a bomb, through all of Dex named products and their numerous changes in transmission fluids with GM.
Now there had to be consumer stories kept on the rear burners!
We know GM has got quite a few stories and now the VW crowds were caught playing as well!
So Now, the pond has billions $ rippling from both sides! It's getting ugly with parts suppliers here and there! Who is fining who, penalties, if no one works to buy cars?
Five year coolant cut those two year profits and all of a sudden antifreeze factories had fires and shortages. Naturally!
Prices have gone up and up!
So far, time has proven, that silicates can be replaced for the better good!
IMHO,
I would not change from Zerex GO 5 and they did not cause the price of antifreeze to double!
Hey, it's made in America, I think?
Pre-dilution marketing, with who knows what of the purity of the water, has done it all!
I haven yet to see GO-5 package that way!
Pentosin is a European market move "in" on an already over priced product market here!
Which way is it being offered here at Napa? Straight or diluted?
I read that water is different in Europe. (:) Really! What about their cars? Will USA water hurt them? (:)
Which I could draw a tongue in my cheek and the eyes!
Now add in the so many "Uninformed" domestic consumers! That's some expensive water in there.
I chose a nicer word, now didn't I?
Question! I wonder does anyone know what Zerex "GO-5" means? Is it like the WD-40 brand, it took forty-tries to get a secret formula?
Be Happy!
Phil
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